adverbs
to a very great extent or degree
"the idea is so obvious"; "never been so happy"; "I love you so"; "my head aches so!"
domain usage
a modifier that has little meaning except to intensify the meaning it modifies
"`up' in `finished up' is an intensifier"; "`honestly' in `I honestly don't know' is an intensifier"
in a manner that facilitates
"he observed the snakes so he could describe their behavior"; "he stooped down so he could pick up his hat"
in such a condition or manner, especially as expressed or implied
"They're happy and I hope they will remain so"; "so live your life that old age will bring no regrets"
to a certain unspecified extent or degree
"I can only go so far with this student"; "can do only so much in a day"
in the same way; also
"I was offended and so was he"; "worked hard and so did she"
in the way indicated
"hold the brush so"; "set up the pieces thus"; (`thusly' is a nonstandard variant)
(usually followed by `that') to an extent or degree as expressed
"he was so tired he could hardly stand"; "so dirty that it smells"
subsequently or soon afterward (often used as sentence connectors)
"then he left"; "go left first, then right"; "first came lightning, then thunder"; "we watched the late movie and then went to bed"; "and so home and to bed"
(used to introduce a logical conclusion) from that fact or reason or as a result
"therefore X must be true"; "the eggs were fresh and hence satisfactory"; "we were young and thence optimistic"; "it is late and thus we must go"; "the witness is biased and so cannot be trusted"
in truth (often tends to intensify)
"they said the car would break down and indeed it did"; "it is very cold indeed"; "was indeed grateful"; "indeed, the rain may still come"; "he did so do it!"